All
5n+9=2n
n=-3
3k+14=k
k=-7
-7x+5=x-19
x=3
-8/10 = y/5
y = -4
9-2y=8y-6
y=1.5
3d=18-3d
d=3
3/7 = 9/x
5n = 20 (4 + .25n)
No solution
Solve for x.
m - 3x = 2x + p
x = (m - p)/5
2x/7 + 4/5 = 5
x = 14.7 or 147/10
(5n + 1)/8 = (3n - 5)/4
n = 11
(b + 3)/7 = (b - 3)/6
b = 39
Hans needs to rent a moving truck. Suppose Company A charges a rate of $40 per day and Company B charges a $60 fee plus $20 a day. For what number of days is the cost the same?
3 days